PT Unit
State 1
PT unit will not operate.
Check operation of PT motor.
Operating
noise heard?
Check that manual valve
is closed.
Closed?
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4st 25/30 2022
Check battery and fuse.
Normal?
Check electrical conductivity
of PT switch.
Conductive?
Check electrical conductivity
of PT solenoid.
Conductive?
Check wire harness between
battery, PT solenoid and
PT switch.
Conductive?
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